2026 Trek Fuel MX 9.9 Gen 7 vs 2026 Ibis Ripmo AF
The XM is the Ibis Ripmo AF size closest to your L Trek Fuel MX 9.9 Gen 7. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Ibis Ripmo AF
Compared with the Trek Fuel MX 9.9 Gen 7 in L, the Ibis Ripmo AF in XM places the top of the head tube 8 mm lower and 4 mm further back, relative to the bottom bracket. Its wheelbase is 15 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −8 mm
- Lower front end
- Frame reach
- −4 mm
- Shorter frame reach
- Wheelbase
- −15 mm
- Shorter: quicker to change direction
- Head angle
- +0.3°
- About the same head angle
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Trek Fuel MX 9.9 Gen 7, LIbis Ripmo AF, XMDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Trek Fuel MX 9.9 Gen 7 L | Ibis Ripmo AF XM | Difference |
|---|---|---|---|
| Reach | 482 | 478 | −4 mm |
| Stack | 641 | 633 | −8 mm |
| Head tube angle | 64.2° | 64.5 | +0.3° |
| Seat tube angle | 77.0° | 76.5 | −0.5° |
| Effective top tube | 618 | 630 | +12 mm |
| Chainstay length | 439 | 436 | −3 mm |
| Wheelbase | 1264 | 1249 | −15 mm |
| BB drop | 31 | 30 | −1 mm |
| BB height | 343 | 344 | +1 mm |
| Standover | 754 | 757 | +3 mm |
| Seat tube length | 420 | 415 | −5 mm |
| Head tube length | 125 | 110 | −15 mm |
Differences are the Ibis Ripmo AF minus the Trek Fuel MX 9.9 Gen 7. Full charts: 2026 Trek Fuel MX 9.9 Gen 7, 2026 Ibis Ripmo AF.
Where each sits in its class
Trek Fuel MX 9.9 Gen 7Ibis Ripmo AF
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Fuel MX 9.9 Gen 79.9 X0 AXS Gen 7 | Ibis Ripmo AF90 |
|---|---|---|
| Fork | Fox 36 Factory | RockShox Lyrik |
| Wheelset | Bontrager Line Pro 30 | Blackbird Send |
| Tire | Maxxis Assegai/Minion DHR II | Maxxis Minion DHF, Maxxis Minion DHR II DD |
| Handlebar | Race Face ERA | Blackbird 35 Aluminum Riser Bar |
| Frame | not listed | Ibis Ripmo AF |
| Rear shock | not listed | RockShox Super Deluxe Select |
| Shifter | not listed | SRAM Eagle 90 Transmission |
| Derailleur | not listed | SRAM GX Eagle Transmission |
| Cassette | not listed | SRAM GX Eagle Transmission |
| Chain | not listed | SRAM GX Eagle Transmission |
| Crankset | not listed | SRAM Eagle 90 Transmission |
| Brake | not listed | SRAM Maven Base |
| Rotor | not listed | SRAM CenterLine |
| Stem | not listed | Blackbird 35 |
| Grips | not listed | Lizard Skins Strata |
| Headset | not listed | Cane Creek 40 |
| Dropper post | not listed | KS Vantage Dropper |
| Saddle | not listed | WTB Silverado Fusion |
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